<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>1-JSX创建虚拟DOM</title>
</head>
<body>
    <!-- 准备好DOM容器 -->
    <div id="test"></div>

    <!-- 必须按照顺序引入JS -->
    <!-- 引入React核心库 -->
    <script src="../js/react.development.js"></script>
    <!-- 引入react-dom库，用于操作DOM -->
    <script src="../js/react-dom.development.js"></script>
    <!-- 引入babel，用于将JSX翻译为JS -->
    <script src="../js/babel.min.js"></script>

    <!-- type必须为text/babel，代表里面的内容为JSX -->
    <script type="text/babel">
        // 1. 创建虚拟DOM
        // 这里不能加引号
        const VDOM = (
            <h1 id="title">
                <span>Hello, React!</span>
            </h1>
        )

        // 2. 渲染虚拟DOM到页面
        ReactDOM.render(VDOM, document.getElementById('test'))
    </script>
</body>
</html>